#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
	int a, b, c;
	printf("please input a,b,c:\n");
	scanf("%d%d%d", &a, &b, &c);
	int max;
	max = a;
	if (max < b)
		max = b;
	if (max < c)
		max = c;
	printf("max=%d\n", max);

	return 0;
}
